Vintage Longines Art Deco Tank, Breguet numerals, Cal. 9L, Gold-filled tonneau case from 1940's

This vintage Longines Art Deco Tank features the elongated, curved case shape that became popular with rectangular and tonneau watches in the early 20th century. The slim profile and gentle curvature give the watch a refined presence on the wrist while staying comfortable to wear.

The silver dial is clean and easy to read, fitted with classic Breguet numerals that give it a distinctive period look. A small seconds subdial at 6 o’clock adds balance to the layout and follows traditional dress-watch design. 

The 10K gold-filled tonneau case measures 21.5 mm wide and 40.5 mm lug-to-lug, creating an elegant, elongated shape without feeling oversized. The curved case follows the wrist naturally and fits the Art Deco design language nicely.

Inside is the Longines Caliber L9, a manual-wind movement commonly used in the brand’s rectangular and tonneau watches of this period. Its slim construction works well with the case design and reflects Longines’ long history of in-house movements.

CASE
21.5 mm width
40.5 mm lug-to-lug
10K gold-filled tonneau case
Crown at 3 o’clock

MOVEMENT
Longines Caliber L9
Manual wind

DIAL
Breguet numerals
Small seconds subdial at 6 o’clock

Learn more about gold watches:

Curious about the differences between gold, gold-plated, gold-filled, and gold-capped watches?

Read our guide: What’s the Real Difference — Gold, Gold-Plated, Gold-Filled, or Gold-Capped Watches.